Improvement in crimping-machines



0; NGACK.

CRIMPING-MAGHINE.

Patented Dac.26,1876.

UNITED STATES PATENT OFFICE.

OSWALD NOACK, 0F BALTIMORE, MARYLAND.

IMPROVEMENT IN CRlMPING-MACHINES.

Specification forming part of Letters Patent No. 185,774, dated December26, 1876; application led June 3, 1876.

To alt 'whom lit may concern:

Be it known that I, OSWALD NOACK, of the city of Baltimore and State ot'Maryland, have invented certain new and useful Improvements inCrimping-Machines, of which the following is a specification; and I dohereby declare that in the same is contained a full, clear, and exactdescription of my said invention, reference being had to the accompany-'the desired shape of the fronts of gaiters,

shoes, te., is obtained at one crimping operation. My inventionconsists, secondly, in means whereby di'erent-sized dies may be used,and the distance between the plates forming the lower portion of the dieregulated, as hereinafter fully described. I

In the descriptionof my invention which follows, due reference must behad to the accompanying drawing, forming a p art of this speciication,and in which- Figure 1 is a side view of parts of a machine embodying myinvent'ion; Fig. 2, a cross-section of the same, and Fig. 3 a plan ot'Fig. 1.

A represents the stand of the machine. B B are plates, which rest upon ahorizontal portion ofthe stand, and form the lower part of thecrimping-die. G is the upper part of the crimping die, secured to theverticallycurve forming a projection, d, near the top thereof'.

It is found, in practice, that the projection d is indispensable inimparting to the fronts the proper shape without a second or auxiliarycrimping operation by means of another machine. rIhe upper edges ot' theplates B are drawn together, and the desired width of aperture isobtained, as described in the patent-viz, by means ot' a bolt, a, andcrank b screwed thereupon; but, in addition to this mechanism, I use inthe present invention the set-screws c, which pass through one of theplates, and bear against the inner surface of the other to any desireddistance between the lower edges of the plates, independently of theposition of the upper edges ot' the same. Gr G are clamps adapted tolimit the extension or divergence ot' the lower edges of the plates B,and are slotted longitudinally to admit ot' the substitution for theplates shown of others differing in width. The lower edge of the plateforming the upper portion ot' the die corresponds very nearly to theupper edges ofthe plates B.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent ofthe United States, is-

1. The plates B, forming the lower portion of the die, provided with thecurved projection d, substantially as and for the purpose set forth.

2. In combination with the plates B, the slotted clamps Gr,substantially as and for the purpose specified.

In testimony whereof I have hereunto subscribed my name this 5th day ofJanuary, A. D. 1876.

OSWALD NOACK.

Witnesses:

W. W. WHARTON, JNO. S. MADDOX.

